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Re: Jason Jones interview
Posted By: M-ClassDate: 1/12/02 9:43 a.m.

In Response To: Re: Jason Jones interview (M-Class)

Q. Now Lighting- do you handle that any special way?

A. This is sort of a general thing. All the lighting in Marathon is done through look-up tables. We don't do any calculations on thefly. We're not sitting there with a pixel, saying "All right, we need to darken this pixel 15 percent," and do a bunch of multiplications and divisions. That's true for pretty much everything in Marathon. Anything interesting that happens probably goes through a look-up table.

So we have a Lighting intensity value and we have a pixel color value, and we combine those in the right ways, send them through a table, and we get out a new pixel value. Everything that goes to the screen gets lighted in some way. Even if a pixel's value is 100 percent intensity, it still passes through a lighting table and remains unchanged. On the lowest level, the lighting is done through look-up tables. On a high level, we assign intensities to individual sprites walking around the world, and we can assign intensities to the floors and ceilings of the map. The walls then intelligently pick up the intensities of the ceilings and floors above and below them.

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Pre-2004 Posts

Replies:

Jason Jones interviewAndrew Nagy 1/9/02 8:31 a.m.
     Also, while playing Marathon 2 the other day...Andrew Nagy 1/9/02 9:10 a.m.
     Re: Jason Jones interviewHamish Sinclair 1/9/02 9:17 a.m.
           Re: Jason Jones interviewwhocares 1/9/02 11:31 a.m.
           Re: Jason Jones interviewM-Class 1/9/02 2:51 p.m.
                 Re: Jason Jones interviewM-Class 1/9/02 3:11 p.m.
                       Re: Jason Jones interviewM-Class 1/9/02 3:24 p.m.
                             Re: Jason Jones interviewM-Class 1/9/02 3:43 p.m.
                                   Re: Jason Jones interviewM-Class 1/9/02 3:54 p.m.
                                         Cool. Are you going to continue? *NM*Hamish Sinclair 1/9/02 9:28 p.m.
                                               HAMISH!!Khral 1/10/02 2:39 a.m.
                                                     Re: HAMISH!!Hamish Sinclair 1/10/02 3:11 a.m.
                                               yep, I got sleepy last night *NM*M-Class 1/10/02 10:58 a.m.
                                         Re: Jason Jones interviewM-Class 1/10/02 11:17 a.m.
                                               Re: Jason Jones interviewM-Class 1/10/02 11:34 a.m.
                                                     Re: Jason Jones interviewM-Class 1/12/02 9:43 a.m.
                                                           Re: Jason Jones interviewM-Class 1/12/02 10:06 a.m.
                                                                 Re: Jason Jones interviewM-Class 1/12/02 10:31 a.m.
                                                                       Re: Jason Jones interviewM-Class 1/12/02 10:44 a.m.
                                                                             Re: Jason Jones interviewM-Class 1/12/02 11:01 a.m.
                                                                                   Many thanks *NM*Hamish Sinclair 1/12/02 12:22 p.m.
                                                                                   Re: Jason Jones interviewM-Class 1/13/02 11:08 a.m.
                                                                                         Re: Jason Jones interviewM-Class 1/13/02 11:31 a.m.
                                                                                               Re: Jason Jones interviewM-Class 1/13/02 11:58 a.m.
                                                                                                     Re: Jason Jones interviewM-Class 1/13/02 12:27 p.m.
                                                                                                           Many thanks. *NM*Hamish Sinclair 1/14/02 12:14 p.m.
                 Re: Jason Jones interviewDan Aris 1/10/02 2:13 p.m.
                 I have this Book! I will sell it if anyone wants!Ernie TMBM 1/11/02 2:53 p.m.
                       Re: I have this Book! I will sell it if anyone wanHamish Sinclair 1/12/02 9:05 a.m.
                             Re: I have this Book! I will sell it if anyone wanErnie 1/15/02 12:39 p.m.
                             Re: I have this Book! I will sell it if anyone wanErnie 1/15/02 12:40 p.m.
           Re: Jason Jones interviewVid Boi 1/10/02 2:20 a.m.



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